tabs - How to solve Can not perform this action after onSaveInstanceState in android -

hi developing small android application in using sherlock actionbar. application contains following things. 1 main activity contains 2 fragments , 1 sample activity. want on button click inside fragment 1 start new sample activity. starting sample activity result. on activity result want swap tab tab2 tab. did in following way

@override public void onclick(view v) {     // todo auto-generated method stub     toast.maketext(getsherlockactivity(), "click on button", toast.length_short).show();     //getactivity().getactionbar().setselectednavigationitem(1);     intent intent = new intent(getactivity(), sampleactivity.class);     startactivityforresult(intent, 7); } 

and on activity result want

 @override @suppresslint("newapi") public void onactivityresult(int requestcode, int resultcode, intent data) {     super.onactivityresult(requestcode, resultcode, data);      if(requestcode == 7)     {             getsherlockactivity().getsupportactionbar().setselectednavigationitem(1);     } } 

so when tried getsherlockactivity().getsupportactionbar().setselectednavigationitem(1); shows me following error :

08-08 16:05:21.596: e/androidruntime(6885): fatal exception: main 08-08 16:05:21.596: e/androidruntime(6885): java.lang.runtimeexception: failure        delivering result resultinfo{who=null, request=65543, result=0, data=null} activity {com.example.sampletabapp/com.example.sampletabapp.mainactivity}: java.lang.illegalstateexception: can not perform action after onsaveinstancestate 

any 1 having solution this.need thank you.

here sample project regarding issue https://www.dropbox.com/s/0d61i9ccol189tv/sampletabappzip.tar.gz. can check actual problem. 1 having solution please help. thank you.

to avoid conflicts immediate execution on ui thread during lifecycle methods, can use various post() methods or implement own handler.

i prefer handler pattern.

i recommend handler declared private static inner class, , have hold weakrefence whatever manipulating, fragment. weak reference avoid memory leaks if fragment repeatedly run through it's life cycle methods.

private static myhandler extends handler {     private final weakreference<myfragment> ref;      public myhandler(myfragment fragment) {         ref = new weakreference<myfragment>(fragment);     }      @override     public void handlemessage(message message) {         myfragment fragment = ref.get();         if (fragment != null) {             //do whatever want do.             //for example:             fragment.somecallbackmethod();         }     } } 

then in fragment, have send message handler inside onclick() method

@override public void onclick(view v) {     handler.sendmessage(new message()); }